MC13135 MC13136
Figure 2. Supply Current versus Supply Voltage
Figure 3. RSSI Output versus RF Input
6.0
5.0
4.0
3.0
2.0
1.0
0
1400
1200
1000
800
V
= 4.0 V
CC
RF = 49.67 MHz
in
f
f
= 1.0 kHz
MOD
DEV
=
± 3.0 kHz
RF = 49.7 MHz
in
600
f
f
= 1.0 kHz
MOD
DEV
=
±
3.0 kHz
400
200
0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
–140
–120
–100
– 80
– 60
– 40
– 20
V
, SUPPLY VOLTAGE (V)
RF INPUT (dBm)
CC
Figure 4. Varactor Capacitance, Resistance
versus Bias Voltage
Figure 5. Oscillator Frequency
versus Varactor Bias
25
20
10
48.0
47.5
47.0
46.5
46.0
45.5
45.0
C , f = 150 MHz
P
8.0
6.0
4.0
2.0
0
R , f = 50 MHz
P
15
10
5.0
0
0.61 µH
500 p
24
23
C , f = 50 MHz
500 p
P
1st LO
V
B
1
2
1.0 M
Ω
0.2 µF
27 p
Varicap
R , f = 150 MHz
P
5.0 p
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
1.0
2.0
3.0
V , VARACTOR BIAS VOLTAGE (Vdc)
B
4.0
5.0
6.0
V
, VARACTOR BIAS VOLTAGE, V
to V
(Vdc)
B
Pin24
Pin 23
Figure 7. Signal + Noise, Noise, and
AM Rejection versus Input Power
Figure 6. Signal Levels versus RF Input
30
10
10
0
S + N
–10
– 20
– 30
– 40
– 50
Second Mixer Output
–10
–30
–50
S + N 30% AM
First Mixer Output
First Mixer Input
V
= 4.0 Vdc
CC
RF = 49.67 MHz
in
N
f
f
= 1.0 kHz
MOD
DEV
– 60
– 70
=
±
3.0 kHz
Second Mixer Input
– 70
–100
– 90
– 80
– 70
– 60
– 50
– 40
– 30
– 20
–130
–110
– 90
– 70
– 50
– 30
RF , RF INPUT (dBm)
RF , RF INPUT (dBm)
in
in
4
MOTOROLA ANALOG IC DEVICE DATA
MOTOROLA [ MOTOROLA ]
